<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script>
        function loadXMLDoc() {
            var xmlhttp;
            if (window.XMLHttpRequest)
            {// code for IE7+, Firefox, Chrome, Opera, Safari
                xmlhttp=new XMLHttpRequest();
            }
            else
            {// code for IE6, IE5
                xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
            }
            xmlhttp.onreadystatechange=function()
            {
                if (xmlhttp.readyState==4 && xmlhttp.status==200)
                {
                    document.getElementById("myDiv").innerHTML=xmlhttp.responseText;
                }
            }
            xmlhttp.open("GET","/test_ajax/",true);
{#            xmlhttp.setRequestHeader("X-Requested-With", "XMLHttpRequest");#}
            xmlhttp.send();

        }
    </script>
</head>
<body>
<div id="myDiv"><h3>Let AJAX change this text</h3></div>
<button type="button" onclick="loadXMLDoc()">Change Content</button>
</body>
</html>